It is accepted that the 6650M graphics card is not exactly the best card out there for gaming, but we were curious about the effects the reduced bandwidth would have on some of the games in our labs. As such, we ran a few gaming benchmarks on the Sony VAIO Z to see what kind of results we would get, and the charts below tell the story:

As can be seen, the scores returned by the VAIO Z for gaming were definitely much lower than what the 6650M could be capable of if it had the benefit of having access to a proper PCIe 2.0 x16 interface. The most telling signs were that the DiRT 2 failed to attain the minimum acceptable speed of 30fps even with all the details knocked down to medium, and the resolution reduced to 720p.